{
  "annotation_id": "a046874e-0b9e-4014-a3e6-bc2fe135b600",
  "date_created": "2026-03-02T18:01:45.198000Z",
  "date_modified": "2026-03-02T18:01:45.198000Z",
  "file_hash": "fca3cde66357bd6d81e6b1576d937ebb51f2007fd7b7d91bb5aa1f466a4ac657",
  "private": false,
  "record": {
    "abstract": "We study the behavior of an open quantum system, with an $N$--dimensional\nspace of states, whose density matrix evolves according to a non--unitary map\ndefined in two steps: A unitary step, where the system evolves with an\nevolution operator obtained by quantizing a classically chaotic map (baker\u0027s\nand Harper\u0027s map are the two examples we consider). A non--unitary step where\nthe evolution operator for the density matrix mimics the effect of diffusion in\nthe semiclassical (large $N$) limit. The process of decoherence and the\ntransition from quantum to classical behavior are analyzed in detail by means\nof numerical and analitic tools. The existence of a regime where the entropy\ngrows with a rate which is independent of the strength of the diffusion\ncoefficient is demonstrated. The nature of the processes that determine the\nproduction of entropy is analyzed.",
    "arxiv_id": "quant-ph/0110033",
    "authors": [
      "Pablo Bianucci",
      "Juan Pablo Paz",
      "Marcos Saraceno"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevE.65.046226",
    "title": "Decoherence for classically chaotic quantum maps",
    "url": "https://arxiv.org/abs/quant-ph/0110033"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3b21e25a-3307-4a89-88d3-33235e344e75",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}